"It was a sexual thing," the tattooed model and stripper explained. "I also wished it was a relationship -- but I wasn't in love with him."

After James sent McGee a message on MySpace, the pair hooked up -- and watched TV -- in the office of his motorcycle shop. The illicit lovers had sex "two to three, four times a night, two times a week," often on James' coffin-shaped couch, she told an incredulous Stern. McGee "never saw" the Seal Beach, Calif. home James shared with Bullock, his wife of nearly five years.

McGee wouldn't confirm whether James wore a condom during their trysts. "That's just too personal," she explained to Stern. "I was on birth control pills, so I wasn't afraid of getting pregnant."